From 458a24b4c672c87c3a961a3d0610dd7f2d783d5c Mon Sep 17 00:00:00 2001
From: aozhiwei <aozhiwei@kingsome.cn>
Date: Thu, 22 Dec 2022 09:10:47 +0800
Subject: [PATCH] 1

---
 f8/utils.h | 62 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)

diff --git a/f8/utils.h b/f8/utils.h
index 583a9d1..4ac1423 100644
--- a/f8/utils.h
+++ b/f8/utils.h
@@ -1,5 +1,9 @@
 #pragma once
 
+#include <a8/reflect.h>
+#include <a8/stringlist.h>
+#include <a8/csvreader.h>
+
 namespace google
 {
     namespace protobuf
@@ -44,6 +48,64 @@ namespace f8
                                });
     }
 
+    template <typename T>
+    bool ReadCsvMetaFile(const std::string& filename, std::vector<T*>& meta_list)
+    {
+        T dummy;
+        a8::reflect::Class* cls = dummy.GetClass();
+
+        a8::CsvReader reader;
+        reader.Load(filename);
+        while (reader.NextLine()) {
+            a8::reflect::Field* fields = cls->GetDeclaredFields();
+            for (int i = 0; i < cls->FieldNum(); ++i) {
+                a8::reflect::Field& field = fields[i];
+                if (field.subtype != a8::reflect::EST_SIMPLE) {
+                    abort();
+                }
+                T* obj = new T();
+                void* p = (void*)obj + field.offset;
+                switch (field.type) {
+                case a8::reflect::ET_INT32:
+                    {
+                        *((int*)p) = reader.GetValue(field.field_name);
+                    }
+                    break;
+                case a8::reflect::ET_UINT32:
+                    {
+                        *((unsigned int*)p) = reader.GetValue(field.field_name);
+                    }
+                    break;
+                case a8::reflect::ET_INT64:
+                    {
+                        *((long long*)p) = reader.GetValue(field.field_name);
+                    }
+                    break;
+                case a8::reflect::ET_FLOAT:
+                    {
+                        *((float*)p) = reader.GetValue(field.field_name);
+                    }
+                    break;
+                case a8::reflect::ET_DOUBLE:
+                    {
+                        *((double*)p) = reader.GetValue(field.field_name);
+                    }
+                    break;
+                case a8::reflect::ET_STRING:
+                    {
+                        *((std::string*)p) = reader.GetValue(field.field_name).GetString();
+                    }
+                    break;
+                default:
+                    {
+                        abort();
+                    }
+                }
+                meta_list.push_back(obj);
+            }
+        }
+    }
+
     bool ReadJsonMetaFile(const std::string& filename,
                          google::protobuf::Message* prototype,
                          std::function<void (google::protobuf::Message*)> push_back_func);